Question

Which of the following is not permissible arrangement of electrons in an atom?

Answer 1

$ASSALAMUALAIKUM$

n = 3, l= 2, m= –3, s = – 1/2 is not permissible arrangement of electrons in an atom.

EXPLANATION :- m=2l+1, thus for l=2, m=5, hence values of m will be -2,-1,0,+1,+2. Therefore for l=2, m can't have the value of -3

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Answer 2

n = 3, l= 2, m= –3, s = – 1/2 is not permissible arrangement of electrons in an atom.

EXPLANATION :- m=2l+1, thus for l=2, m=5, hence values of m will be -2,-1,0,+1,+2. Therefore for l=2, m can't have the value of -3